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simple java math script needed

Posted on 2010-11-11
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Last Modified: 2012-05-10
I am NOT a php or java programmer.  I am looking for a complete solution.

I need script that asks a question like "What do you charge for blah blah"
The user enters a dollar amount.
The script then does math based on the number entered.
The script math is a number I hard code into the script/user entered number.
Example:
User enters 125
My hard coded number is 250
Math would be 250/125

The script would then return: "Your result (or words that I would put in) is " 2 (the result of the math)

thanks.
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Question by:glenn_1984
  • 2
  • 2
5 Comments
 
LVL 29

Expert Comment

by:Badotz
ID: 34116298
Homework?
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LVL 10

Expert Comment

by:P1ST0LPETE
ID: 34116351
Ha, that's what I was thinking Badotz.
Anyway, I'll help out:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <script type="text/javascript">
        function SimpleMath()
        {
            var num = document.getElementById('userNumber').value;
            num = num != '' ? num : 0;
            document.getElementById('result').innerHTML = 250 / num;
        }
    </script>
</head>
<body>
    <span>Enter a number:</span>
    <input id="userNumber" type="text" />
    <br />
    <a href="Javascript:SimpleMath()">Click Me</a>
    <br />
    <span>Your Result: </span>
    <span id="result" />
</body>
</html>

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LVL 16

Author Comment

by:glenn_1984
ID: 34117026
No...homework ended decades ago.
I am a retired computer systems engineer.
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LVL 16

Author Comment

by:glenn_1984
ID: 34117170
That works fine, thanks.
I would like to round the decimals to 2, however.
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LVL 10

Accepted Solution

by:
P1ST0LPETE earned 500 total points
ID: 34118054
function SimpleMath()
{
     var num = document.getElementById('userNumber').value;
     num = num != '' ? num : 0;
     var result = 250 / num;
     document.getElementById('result').innerHTML = result.toFixed(2);
}
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